Bill,
Yup, I enforce any NFPA, ANSI, BOCA,IBC document. Smoke detector placement is one example of what the NEC does NOT address. You have to go to NFPA 72 for placement (The fire alarm code)

What about back to back outlets in firewalls?
Not according to IBC 711.3.2, Nor BOCA 714.1.6.1

How many emergency lights do you need? What section of the NEC do you find it? You don't, you find it in NFPA 101, IBC 2000, etc. you get my point

That's one of the reasons the NEC states pretty early that it is NOT good for design.

Often an inspector cites another code in a rejection, not that you shouldn't challenge them on it, but here I have to cite the section of the code for rejection as well, and I suppose they do in your area also.

Hope this helps.